Dynamic stability research by using load/unload ratio method

SHI Chong; XU Wei-ya; ZHOU Jia-wen; ZHOU Xian-qi

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Dynamic stability research by using load/unload ratio method

更新时间：2026-06-25

- Dynamic stability research by using load/unload ratio method
- Vol. 28, Issue S1, (2007)
- 作者机构：
  
  河海大学岩土工程研究所,南京,210098
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU435
- Online First：28 March 2014，
  
  Published：2007
- 稿件说明：
移动端阅览
SHI Chong, XU Wei-ya, ZHOU Jia-wen, et al. Dynamic stability research by using load/unload ratio method[J]. 2007, 28(S1).
DOI：

SHI Chong, XU Wei-ya, ZHOU Jia-wen, et al. Dynamic stability research by using load/unload ratio method[J]. 2007, 28(S1). DOI：

摘要

借鉴地震预报中的加卸载响应比理论，将作用在动力模型上的地震力视为加卸载，采用动力有限单元法和加卸载响应比理论开展全时程动力分析，建立了地震加卸载响应模型，采用相对位移(速度、加速度)作为响应参数，对地震过程加卸载响应比理论在动力响应预报方面进行了有益探索。结果表明，由于相对响应参数比绝对响应参数更能体现动力模型的变形趋势，反映动力荷载的作用机制；以加卸载响应比判断地震稳定性，是可以反映动力响应程度大小的一种有效方法。

Abstract

Borrowing the idea of load/unload response theory in seismic prediction

seismic dynamic model is established

in which seismic acceleration on the boundary is regarded as load/unload process and relative displacement

velocity or acceleration is looked upon as response parameters

whole time history analysis is performed by finite element method and load/unload response theory

favourable exploratory of the application in dynamic response prediction is then attained through the above-mentioned theories. The results indicate that relative response parameters are more applicable of describing structure deformation

reflecting the dynamic mechanism of action than absolute displacement. Using Load/unload dynamic response ratio to identify the damage degree under seismic waves turns out to be an effective method reflecting the response degree.

关键词

Keywords

references

Views

349

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

3D numerical analysis of influence of tunnel construction on neighboring viaduct

Dynamic responses of a multilayered site with saturated soils

Theoretical analysis of random wave-induced seabed response and liquefaction

Dynamic analysis of elastic plate resting on two-parameter foundation

Analysis of elastic plate resting on Winkler foundation subjected to moving load by isoparametric element method

Related Author

LIU Ting-jin

WEI Li-xin

FANG Ying-guang

MO Hai-hong

YOU Hong-bing

LIANG Jian-wen

ZHAO Feng-xin

WANG Zhong-tao

Related Institution

State Key Laboratory of Subtropical Architecture Science, Department of Civil Engineering, South China University of Technology

Guangzhou Municipal Engineering Design and Research Institute

Department of Civil Engineering, Tianjin University

China Earthquake Disaster Prevention Center

State Key Laboratory of Coastal and Offshore Engineering, Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology

AI问答

⁰